Estádio: Stadium Court Round: 25 Ground: Hardcourt outdoor
| UTR Pro Tennis Series - Říčany | 2021/09/08 09:00 | Dominik Kellovsky v Marcelo Zormann | 6-4,5-1 |
| UTR Pro Tennis Series - Říčany | 2021/09/07 10:30 | Martins Podzus v Marcelo Zormann | 3-6,6-3,7-6 |
| ITF - M25 Ricany | 2021/09/01 08:00 | Marcelo Zormann v Hernan Casanova | 3-6,4-6 |
| ITF - M25 Ricany | 2021/08/31 08:00 | Adam Kozler v Marcelo Zormann | 1-6,2-6 |
| ITF - M25 Ricany | 2021/08/30 09:00 | Marcelo Zormann v Krystof Zapsky | 6-2,6-3 |
| ITF - M25 Ricany | 2021/08/29 10:30 | Giovanni Agostinetto v Marcelo Zormann | 3-6,4-6 |
| ITF - M25 Poznan | 2021/08/25 12:50 | Matias Zukas v Marcelo Zormann | 6-3,4-6,7-6 |
| ITF - M25 Poznan | 2021/08/24 15:10 | Jose Pereira v Marcelo Zormann | 4-6,3-6 |
| ITF - M15 Recife | 2021/09/21 13:00 | Bruno Fernandez v Jared Thompkins | 6-0,6-4 |
| ITF - M15 Recife | 2021/09/20 13:00 | Victor Barros Fernandes v Bruno Fernandez | 2-6,4-6 |